/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package br.ufpr.tads.ghtads.view;

import br.ufpr.tads.ghtads.controller.Materia;
import br.ufpr.tads.ghtads.model.MateriaDto;
import static com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type.Int;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

/**
 *
 * @author G0006185
 */
@WebServlet(name = "materia", urlPatterns = {"/materia"})
public class materia extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
      
        
        try (PrintWriter out = response.getWriter()) {
            Materia materia = new Materia();
            String metodo = request.getParameter("metodo");
            System.out.println(metodo);
            if(metodo.equalsIgnoreCase("add")){
                MateriaDto mat = new MateriaDto();
                
                mat.setNome(request.getParameter("nome"));
                mat.setCarga(Integer.parseInt(request.getParameter("carga")));
                try {
                    System.out.println("oi");
                    materia.addMateria(mat);
                } catch (ClassNotFoundException | FileNotFoundException | SQLException ex) {

                    System.out.println(ex);out.println(ex);
                }
            }else if(metodo.equalsIgnoreCase("list")){
                JSONArray list = new JSONArray();
                try {
                    for (MateriaDto mate:materia.listMateria()){
                         JSONObject obj=new JSONObject();
                         obj.put("nome",mate.getNome());
                         obj.put("id", mate.getId());
                         obj.put("carga", mate.getCarga());
                      list.add(obj);  
                    } 
                    out.println(list);
                  
                  } catch (FileNotFoundException | ClassNotFoundException | SQLException ex) {
                        System.out.println(ex); out.println(ex);
                }
            }else if(metodo.equalsIgnoreCase("del")){
                
               String id =  request.getParameter("id");
                Materia mat = new Materia();
                try {
                    mat.delMateria(Integer.parseInt(id));
                } catch (FileNotFoundException | ClassNotFoundException | SQLException ex) {
                   System.out.println(ex); out.println(ex);
                }
            }
         
           
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
